Summary for September 2015
September rainfall totals were below average across England at 77% of the long term average (LTA). Soil
moisture deficits increased by up to 18mm across most areas during the month, with the greatest increases
occurring across central England.
Monthly mean river flows decreased compared to August at just over half of the indicator sites, but remained normal or higher for the time of year at two-thirds of sites.
Groundwater levels decreased during the month at all but one indicator site. End of month groundwater levels remain normal or higher at half of the indicator sites.
Reservoir stocks decreased at most reported reservoirs and reservoir groups during September, but remained normal or higher for the time of year at most sites. Overall stocks for England decreased to 75% of total capacity.